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AD5522JSVUZ Datasheet(PDF) 2 Page - Analog Devices |
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AD5522JSVUZ Datasheet(HTML) 2 Page - Analog Devices |
2 / 60 page AD5522 Rev. A | Page 2 of 60 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Functional Block Diagram .............................................................. 1 Revision History ............................................................................... 3 General Description ......................................................................... 4 Specifications..................................................................................... 6 Timing Characteristics .............................................................. 11 Absolute Maximum Ratings.......................................................... 15 Thermal Resistance .................................................................... 15 ESD Caution................................................................................ 15 Pin Configurations and Function Descriptions ......................... 16 Typical Performance Characteristics ........................................... 22 Terminology .................................................................................... 28 Theory of Operation ...................................................................... 29 Force Amplifier........................................................................... 29 Comparators................................................................................ 29 Clamps ......................................................................................... 29 Current Range Selection............................................................ 30 High Current Ranges ................................................................. 30 Measure Current Gains.............................................................. 31 VMID Voltage............................................................................. 31 Choosing Power Supply Rails ................................................... 32 Measure Output (MEASOUTx Pins) ...................................... 32 Device Under Test Ground (DUTGND)................................. 32 Guard Amplifier ......................................................................... 33 Compensation Capacitors ......................................................... 33 System Force and Sense Switches............................................. 33 Temperature Sensor ................................................................... 33 DAC Levels ...................................................................................... 34 Offset DAC .................................................................................. 34 Gain and Offset Registers.......................................................... 34 Cached X2 Registers................................................................... 35 Reference Voltage (VREF)......................................................... 35 Reference Selection .................................................................... 35 Calibration................................................................................... 36 System Level Calibration........................................................... 37 Circuit Operation ........................................................................... 38 Force Voltage (FV) Mode .......................................................... 38 Force Current (FI) Mode........................................................... 39 Serial Interface ................................................................................ 40 SPI Interface ................................................................................ 40 LVDS Interface............................................................................ 40 Serial Interface Write Mode...................................................... 40 RESET Function ......................................................................... 40 BUSY and LOAD Functions ..................................................... 40 Register Update Rates ................................................................ 41 Register Selection ....................................................................... 41 Write System Control Register ................................................. 43 Write PMU Register................................................................... 45 Write DAC Register ................................................................... 47 Read Registers............................................................................. 50 Readback of System Control Register...................................... 51 Readback of PMU Register ....................................................... 52 Readback of Comparator Status Register................................ 53 Readback of Alarm Status Register .......................................... 53 Readback of DAC Register........................................................ 54 Applications Information .............................................................. 55 Power-On Default ...................................................................... 55 Setting Up the Device on Power-On ....................................... 55 Changing Modes ........................................................................ 56 Required External Components............................................... 56 Power Supply Decoupling ......................................................... 57 Power Supply Sequencing ......................................................... 57 Typical Application for the AD5522........................................ 57 Outline Dimensions ....................................................................... 59 Ordering Guide .......................................................................... 60 |
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